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aleksklad [387]
3 years ago
7

BRAINLIESTTT ASAP!!! PLEASE HELP ME :)

Chemistry
1 answer:
SCORPION-xisa [38]3 years ago
4 0

Every science experiment should follow the basic principles of proper investigation so that the results presented at the end are seen as credible.

Observation and Hypothesis. ...

Prediction and Modeling. ...

Testing and Error Estimation. ...

Result Gathering and Presentation. ...

Conclusions. ...

Law Formation.

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A mixture of Ar, He, and O2 has a total pressure of 1,015 kPa, and partial pressures of argon and helium of 152 kPa and 305 kPa,
s2008m [1.1K]
The answer is 558 kPa
6 0
3 years ago
if you increased the mass of planet by 2 what would happen to the gravitational force of the planet ​
Karo-lina-s [1.5K]

Answer:

One way to find out is to change “passive mass” - the dirt and rocks of Earth - and convert it into “active mass” - add energy “E” to it. If we increase the energy “E” we will increase its mass. The key is, how do you turn “passive mass” into “active mass” by adding energy “E” to the “passive mass”? After all, isn’t “passive mass” of the Earth just the dirt and rocks that make up the planet?

Explanation:

4 0
4 years ago
What pressure, in atm, is exerted by 2.50 L of gas containing 1.35 mol at 320 K?
salantis [7]

Answer:

Option A = 14.19 atm

Explanation:

Given data:

Volume of gas = 2.50 L

Number of moles of gas = 1.35 mol

Temperature of gas = 320 K

Pressure of gas = ?

Solution:

The given problem will be solve by using general gas equation,

PV = nRT

P= Pressure

V = volume

n = number of moles

R = general gas constant = 0.0821 atm.L/ mol.K  

T = temperature in kelvin

Now we will put the values in formula.

P × 2.50 L =  1.35 mol × 0.0821 atm.L/ mol.K×   320

P = 35.467 atm.L/ 2.50 L

P = 14.19 atm

Thus, option A is correct.

6 0
3 years ago
A mixture of 10.0 g of Ne and 10.0 g Ar have a total pressure of 1.60 atm. What is the partial pressure of Ar
DaniilM [7]
The partial pressure of Ne is 1.06 atm. The answer is a. 1.1 atm

8 0
3 years ago
Read 2 more answers
Calculate the density of a block of water measuring 2 cm x 4 cm x 1 cm, with a mass of 5.4
Nastasia [14]

the formula for density is p=m/v

m aka the mass = 5.4; the v aka the volume = 8

so, p=5.4/8

p= 0.675 g/cm^3

*let's just say the mass' unit is gram so the unit for the density is g/cm^3

3 0
3 years ago
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